Important: Please check and agree shipping fee before you make a bid. Making a bid on an object on Catawiki results in a legal agreement. When you are the highest bidder, please realize that you have an unconditional payment obligation within 3 days. If you don't agree these terms do not make a bid. Please also read and agree the About Me part below this auction description. This lot is a tennis ball hand signed by jannik Sinner. Winning bidder will receive a hologram numbered Collectables Unlimited Certificate of Authenticity COA